Subscribe to Our Youtube Channel
Related Manuals for AR 4000TP2G4
Summary of Contents for AR 4000TP2G4
- Page 1 Operating and Service Manual 4000TP2G4 Model 10031732 Part Number Serial Number 160 School House Road, Souderton, PA 18964 • 215-723-8181 • Fax 215-723-5688 • www.arworld.us...
- Page 3 Amplifier Research 160 School House Road Souderton, PA. 18964 declare that our product(s); the Model 4000TP2G4 series RF amplifiers to which this declaration relates is in compliance with the following European directives: Low Voltage Directive: 2014/35/EU EMC Directive: 2014/30/EU Supplementary Information:...
- Page 5 Instructions for European EMC Conformity WARNING It is the responsibility of the user of this equipment to provide electromagnetic shielding, filtering and isolation which is necessary for EMC compliance to Directive 2014/30/EU. The equipment must therefore be operated in a shielded area which provides a sufficient level of attenuation to meet the radiated emissions and immunity specifications.
- Page 7 The caution symbol denotes a potential hazard. Attention must be given to the statement to prevent Your AR equipment may have more than one power supply cable. Use damage, destruction, or harm. only approved power cable(s). If you have not been provided with a Dangerous voltages are present.
- Page 8 EQUIPMENT CONTAINING LASERS risk of serious injury due to unsafe AR Field Probes (FL/PL Series) and Field Analyzers (FA product handling should be a fundamental Series) are Class 1 laser products containing embedded consideration every user.
- Page 9 Zur Vermeidung von Personen- oder Sachschäden gilt BEVOR SIE DAS GERÄT ANSCHLIESSEN es, die Hinweise zu beachten. Ihre AR-Ausrüstung hat möglicherweise mehr als ein Stromversorgungskabel. Gefährliche elektrische Spannungen sind vorhanden. Verwenden Sie nur zugelassene Stromkabel. Falls Sie kein Stromkabel oder Höchste Vorsicht ist geboten.
- Page 10 Die meisten Geräte müssen während des Versands, der Montage und des Gebrauchs LASER-INFORMATION transportiert werden. Jeder Nutzer sollte sich AR - Feldsonden (FL/PL-Serie) und Feldanalysatoren (FA-Serie) über das Risiko von schweren Verletzungen sind Laserprodukte der Klasse 1 mit eingebetteten Klasse-4- durch unsachgemäße...
- Page 11 électrode de mise à la Votre équipement AR peut disposer de plus d’un câble d’alimentation terre de protection. électrique. Utilisez uniquement un ou des câbles d’alimentation approuves.
- Page 12 éliminer le risque injustifié de blessures causées par le levage est fournie par les méthodes de travail de NIOSH (publication Les sondes de champ AR (série FL/PL) et les analyseurs de n° 94-110) disponibles sur : champ (série FA) sont des produits laser de classe 1 contenant des lasers intégrés de classe 4.
- Page 13 Er zijn gevaarlijke elektrische spanningen aanwezig. Wees uiterst voorzichtig. VOOR HET OPZETTEN VAN DE STROOM Uw AR-apparatuur kan meer dan een netvoedingskabel bezitten. Gebruik alleen goedgekeurde netvoedingskabel(s). Koopt een Wijst op een terminal aan die bedoeld is voor aansluiting netvoedingskabel die is goedgekeurd voor gebruik in uw land als u...
- Page 14 APPARAAT DAT LASERS BEVAT distributie, de assemblage en het gebruik moeten worden behandeld, moet het risico AR-terreinsondes (FL/PL-serie) en terreinanalysatoren (FA- op ernstig letsel als gevolg van een serie) zijn laserproducten van klasse 1 met ingesloten onveilige behandeling van het product een klasse 4-lasers.
- Page 15 ADDITIONAL WARNINGS & NOTES WARNING: This equipment operates at potentially lethal voltages. Only trained, qualified personnel should operate, maintain, or service it. CAUTION: The information in this document was obtained from reliable sources and was believed to be accurate at the time of publication. Since subsequent modifications to the machine may have been made, use this information only as a guide.
- Page 17 Suggested Periodic Maintenance for TWT Amplifiers 1. Keep monthly log of the voltages, currents and temperatures as shown on Menus. Also record Date, “Console” and “Operate” hours. Take readings in Operate mode with the gain at zero (0%) percent. Leave unit in Operate mode for 20 minutes (Max Duty if Pulsed Unit), and then record data.
-
Page 19: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS ....................i DESCRIPTION AND SPECIFICATIONS ............1 TWTA Description ....................1 Suggested Applications ..................1 Specifications ......................1 Accessories ......................1 Test Data Sheet ...................... 2 THEORY OF OPERATION ................5 Design of the Amplifier ..................5 Description of the RF Subsystem ................ - Page 20 Model 4000TP2G4 Troubleshooting ....................32 Non-Repairable Modules ..................33 Recommended Spare Parts .................. 33 TECHNICAL DOCUMENTATION ..............35 Schematics ......................35 Sample Program for IEEE-488 Communication ..........37 FIGURES Front Panel Features .................... 11 Rear Panel Features ..................... 12 Menu Tree ......................17 TABLES Front Panel Features ....................
-
Page 21: Description And Specifications
Equipment calibration • General laboratory instrumentation • SPECIFICATIONS Refer to the AR Data Sheet at the end of this section for detailed specifications. ACCESSORIES AR RF/Microwave Instrumentation offers a number of accessories for use with this amplifier including: Directional coupler •... -
Page 22: Test Data Sheet
Model 4000TP2G4 TEST DATA SHEET A Test Data Sheet for a specific unit is prepared at the time of manufacture and is included with the unit's copy of this manual. Rev A... -
Page 23: Specifications
The amplifier’s front panel digital display Research and Development, and Service appli- shows forward and reflected average power cations. AR also offers a broad range of am- output or forward and reflected peak power, plifiers for CW (Continuous Wave) applica- plus extensive system status information ac- tions. - Page 24 Specifications Page 2 POWER (Fundamental), Peak Pulse, @ Output: Nomi- NOISE POWER DENSITY: 4000TP2G4 nal, 5800 watts; Minimum, 4.7 kW (pulse on) Minus 57 dBm/Hz (maximum); Minus FLATNESS: ±10 dB maximum 59 dBm/Hz (typical) Pulse Amplifier (pulse off) Minus 140 dBm/Hz (typical) FREQUENCY RESPONSE: 2-4 GHz ...
- Page 25 5 to 10 seconds will cause “Over Reverse” fault and a shutdown of high voltage and the amplifier. To order AR Products, call 215.723.8181. For an applications engineer call:800.933.8181. Direct to Service call: 215.723.0275 or email: service@arworld.us For Faxing Orders:866.859.0582 (Orders Only Please)
-
Page 27: Theory Of Operation
2. THEORY OF OPERATION DESIGN OF THE AMPLIFIER The Model 4000TP2G4 TWT amplifier consists of two main subsystems. The power supply subsystem and the RF subsystem, which are discussed in Sections 2.2 and 2.3, respectively. These two subsystems work in conjunction with the control system. The heart of the microprocessor control system is the CPU board (A25450-000). -
Page 28: Logic And Control Module
Model 4000TP2G4 2.3.2. Logic and Control Module This module controls the power supply, monitors all the voltages and currents of the unit, and provides protection for the power supply and the TWT. 2.3.3 Power Factor Corrector Module This switching module forces the line current waveform to follow the line voltage waveform. This minimizes the line harmonics and maintains the power factor near unity. -
Page 29: Operation
3. OPERATION WARNINGS AND CAUTIONS Throughout this manual, the symbol: WARNING: indicates that a hazard exists that may result in personal injury or loss of life. CAUTION: indicates that failure to follow procedures may result in damage to the equipment. WARNING: DANGER - High Voltage Present: Electrical equipment in this TWTA generates and stores high-voltage energy that can result in fatal electrocution. -
Page 30: Installation
Model 4000TP2G4 INSTALLATION 3.2.1 Unpacking Upon receiving the TWTA, unpack the unit and inspect it for obvious signs of external damage. If damage is observed, notify the carrier and contact an authorized service representative. Save and store the shipping container in case the unit needs to be returned in the future for calibration or repair. -
Page 31: Cooling Requirements
Model 4000TP2G4 3.2.3 Cooling Requirements The TWTA is provided with a number of cooling fans. It is important that air movement around the rear of the unit be unobstructed. CAUTION: Do not position the TWTA in such a way that the air intakes or outlets are blocked, or that the exhaust air flow is directed into air intakes. -
Page 32: Rf Connections
Model 4000TP2G4 3.2.5 RF Connections The RF output connector is type N. The RF input connector is type N. CAUTION: Never operate the TWTA without a matched output load rated for at least 8,000 watts, peak and/or 450W continuous. The TWTA is not provided with an output isolator. -
Page 33: Front Panel Features
Model 4000TP2G4 FRONT PANEL FEATURES Figure 3-1. Front Panel Features Table 3-1. Front Panel Features Label Title Function Main Power Switchable 15 amp circuit breaker S1…S4 “Soft Key” pushbuttons: various menu selection functions Standby Pushbutton: turns high voltage and heater off... -
Page 34: Rear Panel Features
Model 4000TP2G4 REAR PANEL FEATURES Figure 3-2. Rear Panel Features Table 3-2. Rear Panel Features Label Title Function FWD Sample Forward Power Sample Port: -50dB coupling factor, Type N female RF Input RF Input: Type N female RF Output RF Output: Type N female... - Page 35 Model 4000TP2G4 Menu screens - The screens at the highest level are called menu screens. There are five menu screens. At power on, the MENU 1 screen is displayed. Each of the menu screens has the soft key S4 labeled MORE. The MORE key (S4) causes the next menu screen to appear.
- Page 36 Model 4000TP2G4 (Sleep Mode activated). This eliminates excessive STANDBY hours on the TWTs while still permitting remote capability to turn on the amplifier. After activating the Sleep Mode: Screen will display Cooling On while heaters cool down. System Off notifies user that the amplifier is in Sleep Mode To deactivate Sleep Mode: Press the ON soft key to de-activate Sleep Mode.
- Page 37 Model 4000TP2G4 operational state of the TWTA, is used as a fault display line until the fault is cleared. Most faults turn HV off. Faults that do not turn off HV are specified in Table 3-5. When such faults are cleared, the system will automatically resume the standby state and users may again select the Operate mode.
-
Page 38: Front Panel Display And Soft Keys
Model 4000TP2G4 FRONT PANEL DISPLAY AND SOFT KEYS 3.5.1 Overview The purpose of the front panel display is to permit the operator to access extensive information about the condition and operation of the TWTA. To accomplish this, a number of informational screens are programmed. -
Page 39: Menu Tree
Model 4000TP2G4 Figure 3-3. Menu Tree Rev A... -
Page 40: Menu Screens
Model 4000TP2G4 3.5.2 Menu Screens Menu Screens - The screens at the highest level are called menu screens. There are four menu screens. At power on, the MENU 1 screen is displayed. Each of the menu screens has the soft key S4 labeled MORE. The MORE key (S4) causes the next menu screen to appear. -
Page 41: Setup Screens
Model 4000TP2G4 3.5.3 Setup Screens Setup Screens Menu 2 - Labeled SETUP selects the first of the setup screens. SETUP 1: allows the user to manually shut off the heater power supply and put the HPA into Sleep Mode (see Section 3.5.4). -
Page 42: Warning Screens
Model 4000TP2G4 After activating the Sleep Mode: Screen will display Cooling On while heaters cool down. System Off notifies user that the amplifier is in Sleep Mode. To de-Activate Sleep Mode locally: Press the ON soft key to de-activate Sleep Mode. Amplifier will return to MENU 1. -
Page 43: Miscellaneous Screens
Model 4000TP2G4 3.5.6 Miscellaneous Screens Info Screen MENU 2 S2 - (labeled INFO) selects a screen that displays the RF sample port calibration factors at various frequencies across the band. In addition, this screen displays the model number, serial number and firmware revision information, which may be required by a service representative when providing technical assistance. - Page 44 Model 4000TP2G4 between the amplifier output power and the RF sample port power as a function of frequency. When only the power of the fundamental frequency is to be measured and when operating near rated power use filters, a frequency selective receiver, or a spectrum analyzer to reduce the harmonic content of the measured level.
-
Page 45: Remote Ieee-488 Operation
Model 4000TP2G4 REMOTE IEEE-488 OPERATION The TWTA is provided with an IEEE-488 interface that permits remote emulation of OPERATE, STANDBY, and RESET push-buttons as well as access to parameter measurements, system faults, gain adjustment and control unit status. The following tables summarize the commands and the return codes. - Page 46 Model 4000TP2G4 Command Function Units Response format RDPSOTF Returns power supply overtemp warning setpoint (°F) °F PSOTF=[ ]F SPSOTF Sets p. s. overtemp warning setpoint (°F) °F RDPSOTC Returns p. s. overtemp warning setpoint (°C) °C PSOTC=[ ]C SPSOTC Sets p. s. overtemp warning setpoint (°C) °C...
-
Page 47: Catalog Of Status Codes
Model 4000TP2G4 Table 3-4. Catalog of Status Codes (The RDSTAT command causes the TWTA to return a string in the form STATUS=[code], where [code] is an ASCII number whose meaning is given below) Status Code Meaning No command was given or last command was successful. -
Page 48: Catalog Of System State Codes
Model 4000TP2G4 Table 3-6. Catalog of System State Codes (The RDLOGIC command causes the TWTA to send a string containing an operational state code consisting of 4 ASCII characters representing hex digits. The response is in the form Sys:[w][x][y][z][eol] where the hex... -
Page 49: Catalog Of *Stb?; Response Codes
Model 4000TP2G4 Table 3-8. *STB?; Response Codes (The command *STB?; causes the TWTA to send a string containing an operational state code consisting of 2 ASCII characters representing hex digits. The response is in the form STATUS:[x][y][eol] where the hex... -
Page 50: Rf Operation
Model 4000TP2G4 It is recommended that the RDSTAT command be used to provide the host program with a report on how a command was processed. A small sample program that can send commands and receive the strings returned by the TWTA is included in Section 5.6. -
Page 51: Twta General Considerations
Cooling during Operate Mode: AR TWTAs have their air outlets and inlets on the rear panels. It is important to prevent the heated air, which is expelled from the TWTA’s air outlets, from being recycled into the air inlets. - Page 52 Model 4000TP2G4 Explanation of Limiting the Time in Standby mode and of Repeated Operate Selection. Traveling wave tubes tend to get “gassy” if they are left in a Standbymode for extended periods of time. In this Standby mode, the heater (filament) is on but there is no high voltage applied to the collector (or high voltage is applied to the collector but the grid is off).
-
Page 53: Maintenance
4. MAINTENANCE The TWTA requires a minimum of routine maintenance. The only moving parts are the elements of switches, relays and blowers. Preventive maintenance is recommended in Section 4.3. In the event that the TWTA needs repairs, it is recommended that the unit be returned to the factory. However, some user service organizations may choose to perform their own corrective maintenance, and under some circumstances returning the unit to the factory may be impractical. -
Page 54: Troubleshooting
Model 4000TP2G4 If significant dust has been noted on the air intake filters, it may be desirable to vacuum the dust and debris from inside the enclosure. Perform this procedure to only one power supply at a time: 1. Remove the power supply subassembly from the rack as follows: NOTE: Due to the weight in excess of fifty pounds, the removal of some of the amplifier’s units from... -
Page 55: Non-Repairable Modules
Model 4000TP2G4 After review of the symptoms of the failure, the user may want to check for a loose connector or component especially after rough handling of the unit. Look externally for physical damage or loose connectors and internally for unmated or loose parts. - Page 56 Model 4000TP2G4 Rev A...
-
Page 57: Technical Documentation
5. TECHNICAL DOCUMENTATION NOTE: The purpose of this technical documentation section is to provide a guide to the TWTA for technician- level servicing. It is intended for use by qualified technical personnel who must troubleshoot and repair the TWTA in the field. Such repairs are typically limited to replacement of modules or major components. For this reason, only documentation pertaining to the highest levels of the system and to system control logic is included. - Page 58 Model 4000TP2G4 Rev A...
-
Page 59: Sample Program For Ieee-488 Communication
Model 4000TP2G4 SAMPLE PROGRAM FOR IEEE-488 COMMUNICATION 1000 ! *********************************************** 1010 IEEE-488 COMMUNICATIONS SOFTWARE 1030 7/24/92 AARON D. McCLURE 1040 ! *********************************************** 1041 DIM F$[80] 1042 DIM A$[80] 1050 CLEAR SCREEN 1060 INPUT "INPUT COMMAND TO SEND TO POWER SUPPLY. - Page 60 Model 4000TP2G4 Rev A...
- Page 61 These modules are not field-repairable and should never be opened outside of AR’s Microelectronics Lab. The modules in these product lines have a security label on two sides of the modules between the housing and lid/cover. If the security label is removed and or cut, the warranty of the module will be voided.
Need help?
Do you have a question about the 4000TP2G4 and is the answer not in the manual?
Questions and answers